Method checkGiftCode

Telegram/SourceFiles/api/api_premium.cpp:297–321

}

void Premium::checkGiftCode(
		const QString &slug,
		Fn<void(GiftCode)> done) {
	if (_giftCodeRequestId) {
		if (_giftCodeSlug == slug) {
			return;
		}
		_api.request(_giftCodeRequestId).cancel();
	}
	_giftCodeSlug = slug;
	_giftCodeRequestId = _api.request(MTPpayments_CheckGiftCode(
		MTP_string(slug)
	)).done([=](const MTPpayments_CheckedGiftCode &result) {
		_giftCodeRequestId = 0;

		const auto &data = result.data();
		_session->data().processUsers(data.vusers());
		_session->data().processChats(data.vchats());
		done(updateGiftCode(slug, Parse(data)));
	}).fail([=](const MTP::Error &error) {
		_giftCodeRequestId = 0;

		done(updateGiftCode(slug, {}));
	}).send();
}

GiftCode Premium::updateGiftCode(
		const QString &slug,